Sash pulley



July 26,

C. E. M CALL SASH PULLEY Filed April 12- 9 2 Sheets-Sheetl fi E.

l I I i F Clarence E. M Ball griucwfoz anw , 1,637,267 J y 5 1927- E. McCALL SASH PULLEY Filed April 12. 1926' v 2 She e'bS-Sheet 2 Clarence E. M? ll all Patented July 26, 1927.

UNITED STATES CLARENCE E. MCCALLOF ST. AUGUSTINE, FLORIDA BASH PULLEY.

Application filed April 12, 1926. Serial No. 101,524.

The present inventionrelates to improvements in window constructions and hardware therefon'and relates more particularly to double hung window constructions.

The primary object of the invention is to provide a novel type of double hung window construction whereby upon imparting movement. to one of the window sashes, movement will be simultaneously imparted to the other window sash.

A further and also important object of the invention is to provide a novel type of sash pulley applicable to double hung window sashes operating as before set forth, and which pulleys are of such construction as to permit of their being properly positioned in the window frame during the construction of the frame so that the cord connecting the window sashes can be fed around the pulleys after all inside and outside trim is in place around the window frame.

A still further object of the invention is to provide a novel type of sash pulley for use in connection with balancing window sashes, and which pulley is adapted to be supported upon the upper side of the header jam or yoke of the window frame with depending tubular portions extending downwardly through the yoke and formin guideways to each side of the parting head or rail of the window frame and through which guideways a rope extends about the sheave of the pulley with the opposite ends of the rope connected to opposite sashes of the window.

A still further object of the invention is toprovide an improved sash pulley for use in connecting with balancing sashes, which is extremely simple in construction, and which may be readily secured in osition without the requiring of any special fastening elements.

Other objects and advantages of the invention will be apparent during the course of the following detailed description, taken in connection with the accompanying drawings, forming a part of this specification, and in which drawings:

Figure 1 is a fragmentary section through the upper portion of a window frame construction and showin the improved pulley in position for supporting the window sashes.

Figure 2 is an enlarged top plan view of the improved pulley, and showing portions thereof broken away, the pulley bemgshown in position upon a fragmentary portion of the yoke of the window frame.

Figure 3 is a vertical section on line 3- 3 of Figure 4. v

Figure 4 is a longitudinalsection thru the pulley taken on line 4-4 of Figure 2.

Figure 5 is a horizontal section taken on line 55 of Figure 4.

Figure 6 is a vertical section thru the win dow frame on line 66 of Figure 7.

Figure 7 is an inside plan view of a window construction embodying balance sashes, and showing certain portions broken away for illustrating the manner in Which the pulleys and sash cords are provided at each side of the sashes.

Figure 8 is an enlarged fragmentary sectlon of the upper corner of the window frame and illustrating the manner in which the sash cord may be secured to the sash for proper movement .over the pulley when the sash is in its uppermost. position.

Referring to the drawings in detail, and wherein similar reference characters desi nate corresponding parts throughout tfie several views, the letter A designates a window frame or casing, B and C upper-and lower sashes respectively,slidable in the easlng A, and D the imp'oved sash pulley for supporting the sashes and C.

The window casing A embodies the vertical side jambs or stiles 10, the header jamb or yoke 11, and the sill 12. Carried by the confronting faces of the stiles 10, are the spaced apart stop rails 13 and the centrally dis osed parting bead or rail 14, and which rai s form independent guideways 15 for the side ed es of the sashes B and C. The parting rail 14 also extends along the underside of the yoke 11 as at 16, and forms pockets 17 one to each side of the longitudinal center of the yoke, and which pockets align with the guideways 15.

The upper sash B, which is adapted for vertical sliding movement in the outer guide- 100 way 15, is of ordinary construction and embodies the top rail 18, bottom or meeting rail 19, and the side rails 20 which engage in the guideways 15. 1

The lower rail C, which is adapted for vertical sliding movement in the innermost guideway 15, is also of ordinaryconstruction and embodies a lower rail 21, anrupper or meeting rail 22, and the side rails 23 for sliding movement in the guideway 15.

The lower rail C, owing to the usual heavy lower rail 21, and the additional hardware such as the lifters 24 and lock 25, is somewhat heavier than the upper rail B, and to overcome this overbalancing by the lower rail, a suitable weight 26 is positioned in the upper side of the top rail 18 of the sash B. This weight 26 may be of any preferred character, just so long as the Weight is sufliciently' heavy enough to cause the sash to balance the lower sash C.

Each of the side rails of the sashes B and I C may be provided at their upper portions with the usual recesses 27 into which the opposite ends of a suitable sash cord 28 may be secured as by suitable fastening elements 29 driven thru the knotted ends of the cord.

As will be observed in Figure 6, but one sash cord is employed at each side of the window, the cord having its opposite ends anchored in the independent sashes B and C and trained through the sash pulley D. By so having the sashes B and C balancing one another as shown, this eliminates the necessity of providing two sash pulleys at each side of the window and also eliminates the necessity of employing the usual four sash weights for balancing of the sashes so that the sashes will remain in any set position. This construction not only eliminates a considerable amount of the necessary hardware as used in the present type of double hung windows, but also eliminates the necessity of providing boxes at each side of the win- 1dow frame in which the usual Weights are ung.

Referring now to the improved sash pulley C, and two of which are mounted in the open space M provided above the yoke 11', each embodies a casing or hood 30, a sheave 31, and anchoring sections 32.

The hood 30 and which may be termed the main body portion of the pulley, is preferably stamped from sheet metal for providin a cap portion 33 having parallel side walls 34 and end walls 35 joined by an arcuate top wall 36. The lower portion of the hood 30 is flared outwardly at a right angle for prov dmg a base flange 37 having its end portions arcuated as at 38.

The sheave 31 is mounted between the side walls 34 of the hood by means of a pin 39 which may have its ends upset for retaining the pin in position in the hood. The sheave 31 is mounted with its periphery in spaced relation from the end and top walls of the .lzood and provides a guideway 40 whereby when the sash cord 28 is slid upwardly between the sheave 30 and the inner wall of the hood, the same will be guided over the sheave and down at the opposite side thereof.

Referring now to the anchoring sections 32, and two' of which are associated with each hood portion, each embodies a depending tubular section 41 having a fiat plate like section 42 formed at the up er end thereof. These plate sections 42, an which are substantially of semi-circularshape in plan have their arcuate marginal edges criinped upwardly upon the arcuate end portions of the base flange 37 of the hood 30 as at 43. These plate sections 42 are adapted to rest flat upon the upper surface of the yoke 11 with the tubular sections 41 thereof extending downwardly thru circular openings 44 provided in the yoke one to each side of the top parting bead 16. These openings 44 and two of which are provided adjacent each end of the yoke 11, have their axes extending thru the longitudinal center line of the pockets 17. The flanges 43 may or may not be clamped tight upon the base flange of the hood, and if not clamped tight upon the base flange will permit of the anchoring sections 32 being shifted slightly toward or away from one another should the openings 44 not be accurately drilled in accordance with the distance between the anchoring sections.

Suitable lugs or teeth 45 may be struck outwardly from the tubular sections 41, and which teeth will engage in the yoke 11 in a manner for retaining the pulley in position upon the upper face of the yoke. It is preferred however that the tubular sections be first slid into the openings 44 and then on ploying a nail set or the like for driving a portion of the tubular section into the yoke and forming the teeth 45.

It will readily be apparent that after the pulley has been positioned in place upon the upper side of the yoke 11, that the sash cord 28 can be fed around the sheave after all inside and outside trim is in place around the window frame.

From the foregoing description it will be apparent that a novel type of sash pulley has been provided for use in connection w t double hung balancing window sashes, which is extremely sim le yet durable and efficient in operation, an which pulle when in position upon the upper face of t e header 321mb or yoke of a window casing, will ermit ofthe sash cord being readily traine over the sheave thereof after all inside and outside trim is in place around the window frame.

Changes in detail may be made to the specific. form of the invention herein shown and described, without departing from the spirit of the invention orthe scope of the following claims.

I claim:

1. A sash pulley com rising a sheet metal hood havin an integraPoutturned marginal flange at t e lower end thereof, a sheave rotatably mounted in the hood, and a separate sheet metal anchoring section clamped to the outturned flange at each end of the hood and each embodying a depending sash cord receiving tubular section arranged below the outturned flanges.

2. A sash pulley comprising a hood having )utturned marginal flanges at its lower open and, anchorin sections for'the hood com: arising depen ing tubular sections having lat plate sections formed at their upper ends ipon which the hood rests and provided with inturned mar inal portions overlying ;he flange of the 00d for permitting of ;light relative movement of the hood and lnchoring sections, and a sheave rotatably nounted in the hood above said tubular sec- ;ions.

3. A sash pulley for positioning upon the ipper side of the yoke of a window construction, comprisin a hood, anchoring sec- ;ions including tubu ar portions adapted to extend downwardly thru the yoke and havlng plates provided at their u per ends for zlidable connection with the ower portion at the hood, :1 sheave rotatably mounted in the hood, and means for securing said tubular portions to the yoke. I

4. A sash pulley for positioning upon the upper side of the yoke of a window construction. comprising a hood having an arcu ate top wall and provided at its lower open end with a marginal outturued flange. a

sheave rotatably mounted in the hood and forming an arcuate guideway inwardly of the top wall of the hood, and means for securing the hood to the yoke comprising anchoring sections embodying tubular sections extending thru the yoke and plate like sections for crimping about the outturned flange of the hood, said tubular sections having their axes intersecting the arcuate guideway at opposite sides of the sheave.

5. A sash pulley oomprisin a sheave, an open bottomed hood rotatab ly supporting said sheave, said hood outwardly flanged at its lower ends, and separate retaining members for securing the hood to the window frame, detachably engaging said flanges and adjustable in the plane thereof.

6. A sash pulley comprising a sheave, an open bottomed hood rotatabl supporting said sheave, said hood outwardly flanged at its lower ends, and separate retaining mem bers for securing the hood to the window frame, detachably engaging said flanges and adjustable in the lane thereof, said retaining members eacii provided with tubular sash cord receiving portions to extend in apertures in the window frame.

7. A sash pulley comprisin a sheave, an open bottomed hood rotatalfiy supporting said sheave, and a pair of tubular sash cord receiving members carried by said hood with their axes parallel, at least one of said tubular members laterally adjustable towardand from the other.

CLARENCE E. MGCALL. 

